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CVE-2026-55435— Suspended Coder users retain access to AI Bridge LLM proxy endpoints

Quick assessment

Affected
coder coder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Coder是Coder组织开源的一个可以在公共或私有云基础设施中设置开发环境的应用程序。 Coder存在授权问题漏洞，该漏洞源于AI Bridge代理端点通过Server.IsAuthorized进行身份验证时，未检查账户是否被暂停，导致已暂停用户的未过期API密钥仍可继续使用，可能导致信息泄露和非法修改。

CVSS 5.4 · Medium EPSS 0.32% · P25

Affected Version Matrix 3

VendorProduct Version RangeStatus
coder coder >= 2.34.0, < 2.34.2 affected
>= 2.33.0, < 2.33.8 affected
>= 2.30.0, < 2.32.7 affected
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I. Basic Information for CVE-2026-55435

Vulnerability Information
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Vulnerability Title
Suspended Coder users retain access to AI Bridge LLM proxy endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
Coder allows organizations to provision remote development environments via Terraform. Starting in version 2.30.0 and prior to versions 2.32.7, 2.33.8, and 2.34.2, AI Bridge proxy endpoints authenticate via `Server.IsAuthorized` in `coderd/aibridgedserver`, which validates key format, expiry, secret and deleted or system users but does not check whether the account is suspended. Because suspension does not revoke existing API keys, a suspended user's unexpired token keeps working. Practical impact is limited to already-issued API keys of suspended users until those keys are deleted. Versions 2.32.7, 2.33.8, and 2.34.2 patch the issue. As a workaround, on suspension, delete the user's API keys via `DELETE /api/v2/users/{user}/keys`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Coder 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Coder是Coder组织开源的一个可以在公共或私有云基础设施中设置开发环境的应用程序。 Coder存在授权问题漏洞，该漏洞源于AI Bridge代理端点通过Server.IsAuthorized进行身份验证时，未检查账户是否被暂停，导致已暂停用户的未过期API密钥仍可继续使用，可能导致信息泄露和非法修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
coder coder >= 2.34.0, < 2.34.2 -

II. Public POCs for CVE-2026-55435

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III. Intelligence Information for CVE-2026-55435

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Patches & Fixes for CVE-2026-55435 (3)

Vendor Advisories for CVE-2026-55435 (1)

Vendor Pages for CVE-2026-55435 (3)

Same Patch Batch · coder · 2026-07-07 · 12 CVEs total

CVE-2026-46354 9.1 CRITICAL Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent tok
CVE-2026-55427 8.3 HIGH Coder vulnerable to SSH config injection via unsanitized server-supplied values in `coder
CVE-2026-55428 8.2 HIGH Coder: Route hijacking through lack of validation of agent-supplied AllowedIPs in tailnet
CVE-2026-44454 8.1 HIGH Coder vulnerable to workspace auto-creation via crafted URL parameters without user consen
CVE-2026-55075 7.4 HIGH Coder vulnerable to OIDC account takeover via email-based user matching and email_verified
CVE-2026-55076 7.4 HIGH Coder's OIDC email_verified type coercion bypass enables account takeover via unverified e
CVE-2026-55077 7.2 HIGH Coder: User-admin role can reset owner account password
CVE-2026-55434 6.5 MEDIUM Coder vulnerable to denial of service via unbounded request body in AI Bridge provider end
CVE-2026-45796 6.5 MEDIUM Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint
CVE-2026-55078 6.5 MEDIUM Coder: Zip upload decompression lacks aggregate size limit, enabling denial of service
CVE-2026-55079 4.9 MEDIUM Coder's unbounded memory allocation in provisioner file upload allows authenticated denial

IV. Related Vulnerabilities

Same product: coder
Same vendor: coder
Same weakness: CWE-863